Sole-pressing machine.



PATENTED FEB. 7, 1905.

H. A. DAVENPORT.

SOLE PRESSING MACHINE.

APPLICATION FILED APR. 6. 190a.

UNITED STATES Patented February 7, 1905.

ATENT Fries HERMAN A. DAVENPORT, OF BROOKTON, MASSACHUSETTS, .ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NElV JERSEY, A CORPORATION OF NEW JERSEY.

SOLE-PRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 781,636, dated February 7, 1905.

1903. Serial No. 151,248.

To a whom it may concern.-

Be it known that I, H ERMAN A. DAVENPORT, a citizen of the United States, residing atBrockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Sole-Pressing Machines: and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to sole-pressing machines, and is intended primarily as an improvement on the sole-laying machine disclosed in the patent to \V. S. I-Iamm, No. 3755b), dated December 27, 1887. In the machine illustrated in the patent the shoesupporting jack is secured to a cross-head which is mounted to reciprocate upon vertical guide-rods. The cross-head is supported upon springs surrounding the guide-rods and is depressed to bring the sole of the shoe into contact with a pressing-pad by means of a treadle connected by rods to the cross-head. "l utch-collars are mounted to reciprocate upon the guide-rods above the cross-head and act to lock the cross-head in its depressed position during the upward movement of the pressingpad to press the sole into position upon the shoe. A rock-shaft is mounted in the crosshead and is provided with cams which when the rock-shaft is actuated by the operator raise the clutch-collars so as to release them from the guide-rods and allow the springs surrounding the guide-rods to raise the crosshead and the clutch-collars to their initial position. The upward movement of the crosshead and clutch-collars is limited by stop-collars clamped upon the upper ends of the guide-rods, with which the clutch-collars are brought into engagement. The clutch-collars are connected to the cross-head, so as to have a limited independentmovement, by means of plates secured to the clutch-collars and provided with slots which are engaged by pins projecting from the cross-head. In the operation of the machine of the Hamm patent it has been found that during the upward movement of the cross-head and clutch-collars great strain is put upon the slotted plates and pins which connect the clutch-collars and the cross-head, so that these parts are continually breaking. This may be due to the fact that the clutch-collars strike the stopcollars at the upper ends of the guide-rods with great force and that one of the stop-collars becomes displaced, so that the upward movement of the cross-head is stopped by the other stop-collar, thereby allowing a continued upward movement of the clutch-collar on the other side of the machine. \Vhether or not the breaking of the slotted plates and pins which connect the clutch-collars and the cross-head is due to the displacement of one of the stop-collars the fact remains that the breaking of these parts occasions considerable delay, annoyance, and expense in the operation of the machine. Furthernmrc, it is 00- casionall y found necessary to repair the clutchcollars, and this can only be accomplished by removing the clutch-collars from the machine, which necessitates the removal of the slotted plates from the clutch-collars.

The objects of the present invention are to provide a strong and durable connection between the cross-head and the clutch-collars which will not become brokenor bent during the operation of the machine and which will allow the clutch-collars to be readily removed from the machine for repairs.

\Yith these objects in view the present invention consists in the devices and combinations of devices hereinafter described and claimed, the advantage of which will be obvious to those skilled in the art from the following description.

A A preferred form of my invention is illustrated in the accompanying drawings, in which Figure 1 is a view in front elevation of the k upper portion of a sole-laying machine similar l to that disclosed in the patent to I-Iamm above referred to with my invention applied thereto. Fig. 2 is a view in sectional elevation of I the portion of the machine illustrated in Fig. 1, taken on the line 2 2 and looking toward the left. Fig. 3 is a detail view illustrating a yoke-shaped guide which forms a portion of the connections between the cross-head and the clutch-collars; and Figs. 4 and 5 are detail views, in plan and end elevation, of a block also forming a portion of the connections between the cross-head and the clutch-collars.

Referring to the drawings, 1 indicates the cross-head, to which the shoe-supporting jack 2 is secured. The cross-head 1 is mounted to reciprocate upon vertical guide-rods 3 and is normally held in its raised position, as indicated in Figs. 1 and 2, by means of springs 4, coiled around the guide-rods 3. A treadle is connected to the cross-head 1 by means of connecting-rods 5, the construction being such that an actuation of the treadle depresses the cross-head against the tension of springs 4 and brings the sole of the shoe supported upon the jack 2 into engagement with a suitable pressing-pad. Clutch-collars 6 are mounted to reciprocate upon the guide-rods 3 above the cross-head 1 and move downwardly. with thecross-head and lock the cross-head in its depressed position during the upward movement of the pressing-pad to lay the sole of the shoe. The clutch-collars 6 are actuated to release the guiderods 3 and allow the cross-head to be raised by the springs 4 by means of cam-levers 7, pivotally mounted in the crosshead, the inner ends of the cam-levers being arranged beneath the clutch-collars and the outer ends being connected by links 8 to arms 9, secured to aroclt-shaft 10, journaled in the cross-head and provided witha handle 11, extending into a position to be conveniently grasped by the operator. The upward movement of the cross-head 1 and clutch-collars 6 under the force of springs 4 is limited by stopcollars 12, clamped upon the upper ends of the guide-rods 3.

Except for a slight difference in the construction and arrangement of the means for actuating the cl utch-collars to release the rods 3 the construction and mode of operation of the parts above described is the same as that of the corresponding parts of the machine of the Hamm patent.

In carrying out my present invention I have provided a yoke-shaped guide 13 for each of the clutch-collars 6, which spans the head of the machine and is pivotally secured thereto by means of a pivot-bolt 14. A boss 15 projects from each of the clutch-collars 6 into a yoke-shaped guide 13 and is provided with an open-ended slot through which passes a guiding-pin 16, projecting downwardly from the yoke-shaped guide. A spring 17 is coiled around the pin 16 and is interposed between the upper portion of the yoke-shaped guide and the boss 15. The yoke-shaped guides form strong and durable connections between the cross-head and the clutch-collars which effectively resist the strain to which they are subjected when the cross-head and clutch-collars are raised by the springs 4. The springs 17 serve as yielding abutments to limit the upward movement of the clutch-collars with relation to the cross-head. The pivotal connection between the yoke-shaped guides and the cross-head allows the clutch-collars to be easily and quickly removed from the machine without disconnecting the guides from the cross-head, the guides being swung about their pivots until free from the bosses 15. In order to hold the guides 13 in position and to relieve the pivot-bolts 14 of the strain to which they would otherwise be subjected, blocks 18 are provided,which rest upon the cross-head 1 and are secured in position by means of straps 19, the straps passing around the cross-head and through holes in the blocks 18 and being tightened by means of nuts 20 upon the screwthreaded ends of the straps. The "blocks '18 are grooved to receive the cross-head andare provided with downwardly-extending projections 21, which engage the upper surfaceof projections 22 on the yokeshaped guides 13. By means of the straps 19 the blocks 18 are held rigidly in position to resist the strain to which the yoke-sh aped guides 13 are subjected when the cross-head and clutch -=col-lars are raised by the springs 4. By loosening the straps 19 the blocks 18 can be moved laterally to allow the yoke-shaped guides to be swung out of engagement with the bosses 15 of the clutch-collars when it is desired to remove the clutch-collars from the machine.

Having thus described my invention, Iic'laim as new and desire to secure by Letters Patent of the United States 1. A sole-pressing machine, having, in combination, guide-rods, a head mounted to reciprocate thereon, clutch-collars also mounted to reciprocate thereon, yoke-shaped guides spanning the head and pivotally secured thereto, bosses projecting from the clutch-collars into the guides, projections on the guides and blocks secured to the head engaging the projections, substantially as described.

2. A sole-pressing machine, having, incombination, guide-rods, a head mounted to reciprocate thereon, clutch-collars also mounted to reciprocate thereon, yoke-shaped guides spanning the head and pivotally secured thereto, and bosses projecting from the clutch-collars into the guides, substantially as described.

3. Asole-pressing machine, having, in combination, guide-rods, a head mounted to reciprocate thereon, clutch-collars also mounted to reciprocate thereon, yoke-shaped guides spanning the head and pivotally secured thereto, slotted bosses projecting from the clutchcollars into the guides,pins projecting from'the guides through the slots in the bosses and springs surrounding the pins, substantially as described.

4. A sole-pressing machine, having, in combination, guide-rods, a head mounted to reciprocate thereon, clutch-collars also mounted to reciprocate thereon, yoke-shaped guides spanning the head and pivotally secured thereto, bosses projecting from the clutch-collars into the guides, projections on the guides, blocks engaging the projections, and straps securing the blocks on the head, substantially as described.

5. A sole-pressing machine, having, in combination, guide-rods, a head mounted to reciprocate thereon, clutch-collars also mounted to reciprocate thereon, yoke -shaped guides spanning the head and pivotally secured thereto, slotted bosses projecting from the clutchcollars into the guides,pins projecting from the guides through the slots in the bosses, springs surrounding the pins, projections on the guides, blocks engaging the projections, and straps securing the blocks on the head, substantially as described.

6. A sole-pressing machine, having, in combination, guide-rods, a head mounted to reciprocate thereon, clutch-collars also mounted to reciprocate thereon, yoke-shaped guides spanning the head and secured thereto, and bosses projecting from the clutch-collars into the guides, substantially as described.

In testimony whereof I atlix my signature in presence of two Witnesses.

HERMAN A. DAVENPORT.

\Vitncsses:

FRED O. FIsII, l-[ORACE VAN Evmznu. 

